Publications

• Thèse

Guides d'onde à base de GaAs à basse température : vers un modulateur électro-optique intégré pour le moyen infrarouge., Waveguides based on low-temperature grown GaAs : towards an integrated, mid-infrared electro-optic modulator.

Loic Feukam Takoundjou

La modulation rapide d'amplitude et de phase est essentielle pour de nombreuses applications, notamment la stabilisation d'amplitude/fréquence laser, la détection cohérente, la spectroscopie FM/AM et la détection de gaz, le verrouillage de modes, les communications optiques, les contre-…, Fast amplitude and phase modulation are essential for a number of applications, including laser amplitude/frequency stabilization, coherent detection, FM/AM spectroscopy and gas sensing, mode-locking, optical communications, military countermeasures, etc.Despite recent encouraging results, in the…

Micro et nanotechnologies/Microélectronique. Université de Lille, 2025. Français. ⟨NNT : 2025ULILN016⟩. ⟨tel-05469780⟩

• Article dans une revue

Design and Optimisation of a Vibrating Wing Insect-Size Air Vehicle with Lumped Parameter Models and Compliant Links

Marguerite de La Bigne, Mathieu Colin, Eric Cattan, Sofiane Ghenna, Marie Zwingelstein, Sébastien Grondel, Olivier Thomas

Abstract This article presents the design of a microfabricated bio-inspired flapping-wing Nnano Aaerial Vvehicle (NAV), driven by an electromagnetic system. Our approach is based on artificial wings composed of rigid bodies connected by compliant links, which optimise aerodynamic forces though…

Journal of Bionic Engineering, 2025, ⟨10.1007/s42235-025-00761-1⟩. ⟨hal-05310578⟩

• Article dans une revue

Unsupervised sparse coding-based spiking neural network for real-time spike sorting

Alexis Mélot, Sean U N Wood, Yannick Coffinier, Pierre Yger, Fabien Alibart

Abstract Spike sorting is a crucial step in decoding multichannel extracellular neural signals, enabling the identification of individual neuronal activity. A key challenge in brain–machine interfaces is achieving real-time, low-power spike sorting at the edge while keeping high neural decoding…

Neuromorphic Computing and Engineering, 2025, 5 (3), pp.034015. ⟨10.1088/2634-4386/ae006b⟩. ⟨hal-05534780⟩

• Article dans une revue

A critical review on neurodegenerative biomarker diagnostics: where is the field heading to?

Mandana Amiri, Hosein Afshary, Abolfazl Bezaatpour, Sepideh Hatamikia, James Wei, Rabah Boukherroub, Sabine Szunerits

Neurodegenerative diseases (NDD), a collection of disorders with different underlying causes and clinical presentations, are recognized as a major area of concern of our society today. The most common NDD are Parkinson’s disease (PD), Alzheimer’s disease (AD), amyotrophic lateral sclerosis (ALS),…

Analytical and Bioanalytical Chemistry, 2025, ⟨10.1007/s00216-025-06061-1⟩. ⟨hal-05312440⟩

• Article dans une revue

A 250 MHz to 1.1 THz sub-mm wave on-wafer characterization of InP HEMT using a multiline Thru-Reflect-Line calibration kit

Rita Younes, Mohammed Samnouni, Sylvie Lepilliet, Guillaume Ducournau, Nicolas Wichmann, Sylvain Bollaert

Abstract In this paper, we report an on-wafer High-Electron-Mobility transistor characterization method over a large frequency band [250 MHz–1.1 THz]. The transistor’s coplanar accesses were optimized to enable high-frequency measurement of the devices up to 1.1 THz. The characterization method…

International Journal of Microwave and Wireless Technologies, 2025, pp.1-9. ⟨10.1017/S1759078725102377⟩. ⟨hal-05318166⟩

• Communication dans un congrès

From active materials to microsystems: development, integration, and applications

Sofiane Ghenna, Sébastien Grondel, Eric Cattan

This work explores the continuum from bio-inspired concepts to functional microsystems, highlighting the potential of active materials for soft and adaptive technologies. Drawing inspiration from biological systems, particularly muscle based actuation (Conducting polymer-based transducers), we…

2nd Seminar of Flexible Microstructure, Customized Materials in Biomedical Engineering and Technologies, Brandenburg University of Technology, Oct 2025, Cotttbus, Germany. ⟨hal-05299508⟩

• Article dans une revue

Do Micropower Sources Meet the Needs of the Internet of Things?

Grace Whang, Randy Chen, Jacky Yu, Christopher Choi, Patricia Mcneil, Jérémie Chaillou, Christophe Loyez, Christophe Lethien, Bruce Dunn

Abstract The rapid global adoption of the Internet of Things (IoT), combined with the ongoing trend toward device miniaturization, has marked the emergence of compact, connected technologies. However, as device dimensions continue to decrease, power sources remain a critical bottleneck. Micropower…

Advanced Energy Materials, 2025, pp.e03921. ⟨10.1002/aenm.202503921⟩. ⟨hal-05318125⟩

• Article dans une revue

On the origin and suppression of parasitic channel in AlN/GaN/AlGaN back barrier RF devices

L. Ben Hammou, F. Grandpierron, E. Carneiro, Katir Ziouche, Etienne Okada, F. Medjdoub

This work investigates the origin and physical location of a parasitic conduction path in GaN devices incorporating an AlGaN back barrier (BB) through a combined approach of calibrated Technology Computer-Aided Design (TCAD) simulations and experimental C–V and I–V measurements on Schottky diodes…

APL Electronic Devices, 2025, 1 (4), pp.046101. ⟨10.1063/5.0288132⟩. ⟨hal-05293333⟩

• Communication dans un congrès

Strain Decoupling in Ge/Si via Selective Misfit-Network Etching

Youcef A Bioud, Meriem Bouchilaoun, Waldemar Schreiber, Redouane Amrar, Gilles Patriarche, Ali Soltani, Stefan Janz

CMOS-compatible Ge/Si heterostructures enable high-performance electroabsorption modulators, photodetectors, photonic interconnects, and multijunction photovoltaics, yet their scalability is hindered by the 4.2% lattice and thermal mismatch that generates dense dislocations. Here, we report a…

10th International Symposium on Control of Semiconductor Interface, Oct 2025, Kanagawa, Japan. ⟨hal-05297953v2⟩

• Article dans une revue

DyCE: Dynamically Configurable Exiting for deep learning compression and real-time scaling

Qingyuan Wang, Barry Cardiff, Antoine Frappé, Benoit Larras, Deepu John

Future Generation Computer Systems, 2025, 171, pp.107837. ⟨10.1016/j.future.2025.107837⟩. ⟨hal-05053914⟩